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Energy efficiency was a main factor in the design, and with the inclusion of a radiant heating and cooling system, the bank is able to cut energy use by 30-50% compared to traditional systems. Plastic tubes are embedded in the prefabricated concrete flooring. During the winter, water is heated and circulated through the floor and the room temperature can be controlled very precisely. For cooling in the summer, water is cooled by driving it into the ground, and even cooler seawater can be used and then run through the pipes.